code: def create_series_map(applies_to_matrix_dimension):
      return ci.Cifti2MatrixIndicesMap(
          applies_to_matrix_dimension,
          "CIFTI_INDEX_TYPE_SERIES",
          number_of_series_points=13,
          series_exponent=-3,
          series_start=18.2,
          series_step=10.5,
          series_unit="SECOND",
      )
  
imports: import numpy
  import pytest
  import nibabel
  from nibabel import cifti2
  from nibabel.tmpdirs import InTemporaryDirectory
  from ...testing import assert_array_equal, clear_and_catch_warnings, error_warnings, suppress_warnings
label_desc: Use image node_id 9 for calling a global function with example usage: create_series_map(applies_to_matrix_dimension) and returns: ci